First of all, if you are a life wizard and even THINK of using detonate, I laugh at you. Detonate is a terrible spell for fire wizards, much less a life wizard who bought the TC. Honestly, it depends. If you are fighting a life enemy, definitely gnomes. The single hit is good for prisms and the life dispels are handy too. If you are fighting a non-life enemy, use Spinysaur. It does more damage for one more pip, and chances are you will end up spending the same amount on gnomes.Kane WildThief, level 66 Necromancer